Telephone and station apparatus.



No. 879,073. PATENTED FEB. 11 1908.

. N. L. WEINGOTT.

TELEPHONE AND STATION APPARATUS,

APPLICATION FILED DEO.30, 1907.

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No. 879,073. PATENTED FEB. 11, 1908.

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.v No. 879,073.

' PA'TENTED FEB-J11, 1908.

N. L. WEINGOTT. TELEPHONE AND STATION APPARATUS.

APPLICATION FILED 1130.30, 1907.

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UNITED STATES PATENT OFFICE.

NUOHIM LEIB WEINGOTT, OF WARSAW, RUSSIA.

TELEPHONE AND STATION APPARATUS.

.' To all whom it may concern:

Be it known that I, N UCHIM LEIB VVEIN- GOTT, mechanician, citizen of Russia, subject of the Emperor of Russia, residing at VVarsaw, in the Kingdom of Poland and Empire of Russia, have invented certain new and useful Improvements in Telephones and 1 Station Apparatus, of which the following is a full, clear, and exact description.

Thepresent invention relates to a device, to extend and to facilitate the use of telephonic wire plants in towns and so on.

The fundamental idea of the invention is to replace the usual stationary telephones by portable pocket-telephones. Junction points, at which pocket-telephones are inserted into the telephonic wire plant must be provided as many as possible in the whole town, in establishments etc. at suitable places easily accessible to public use, so that the owner of a pocket-telephone will have no difficulties whatsoever to connect the same with the wire-plant.

Portable telephones are already known; however the same have been used up to the present time only by a limited number of partakers, as for instance by the officials of railway companies, by the visitors of large hotels and of other establishments, in short for purposes, whereby a payment for the use of the telephonic wire plant was not raised. The portable telephones up to now in use have the disadvantage of not rendering possible a control for the purpose of raising money for the use of the wire plant. This is also the reason, why the portable telephones known up to the present time have not found any general application.

The present invention renders it possible to compel the owner of a pocket-telephone to make regular, as for instance annual payments to the telephone companies for the use of the wire plant. This aim is arrived at by the peculiar formation of the contact-device, by means of which the pocket telephone is connected with the telephonic wire plant. The pocket telephones carry keys, which are attached to them by means of short conductors and which fit into stationary junotion -pieces provided in the wire plant. These keys are provided with contacts corresponding to the contacts in stationary junction-pieces. Whenever the contacts of the junction-pieces are changed, the keys can make no more contact therewith. Consequently the owner of the pocket-telephone I Specification of Letters Patent. Application filed December 30I 1907. Serial No. 408.690.

Patented Feb. 11, 1908.

must exchange his key for a new key in the telephone company, whereby he will have to pay a new rent for-the further use of the telephonic wire plant.

The question is to be able to easily transpose and change the contact of the stationary junction-device, as Well as to easily exchange the contact key of the pocket telephone for a new one.

Further it is necessary for the sake of introduction of the invention into general use to form the portable telephone as compact as possible, for instance in the shape of a watch.

In the accompanying drawings: Figure 1 is a perspective view of a pocket telephone and station box. Fig. 2 is a perspective view of the modified form of pocket telephone in open position. Fig. 3 is a perspective view of the same in closed position. Fig. 4 is a central axial sectional view of the telephone shown in Fig. 1. Fig. 5 is a rear elevation of the telephone shown in Fig. 4. Figs. 6, 7 and 8 are sectional views of details of the telephone connections. Fig. 9 is a transverse sectional view of a telephone showing a modified form. of connection. Fig. 1.0 is an axial sectional view of the telephone shown in Fig. 9. Fig. 11 is a rear elevation of the mechanism of the station a paratus. Fig. 12 is a side elevation of tie same. Figs. 13, 141, 15 and 16 are detail views partly in section of the devices for connecting the telephone and the station apparatus. Fig. 17 is a side elevation of a modified form of the mechanism of the station apparatus. Fig. 18 is a rear elevation of the apparatus shown. in Fig. 17. Fig. 19 is a horizontal sectional view of a portion of the apparatus shown in Figs. 17 and 18. Fig. 20 is a side elevation of another modified form of the mechanism of the station apparatus. Fig. 21 isa plan view of the mechanism shown in Fig. 20.

In Fig. 1 7 designates the casing of the stationary junction-piece. Such casings are conveniently provided at different easily accessible places of the town, as for instance in the vestibules of hotels, of ware houses, of restaurants and so on 6 is an opening in the lid of the easing into which the conductor 4 of the pocket telephone 1, 2, 3 is inserted by means of the contact 5 formed like a key.

In the watch-like casing 3 there are united the receiver and the transmitter. On the visible perforated side of 3 the transmitter represented by Figs. 2, 3, 9 and 10.

is arranged and on the back is the receiver, from which the sound is conducted through the hearing tube 1 to the ear of the speaker. The hearing tube 1 is fastened to the casing 3 in such a way, that it can be detached by being drawn out.

12 is the diaphragm before which the suitably formed end of the receiver is pushed by means of the guides 11.

The union of the transmitter and receiver in the casing 3 is represented by Fig. 4. The cable 4 comprises four insulated conducting wires, which are introduced from below into the casing. The casing 3 comprises in the one half the receiver with the microphone consisting of a stratum of coal-dust; two of the four wires belong to the receiver, the other two wires belong to the transmitter. Here the flat form of the electromagnet 14 may be particularly pointed out.

In Figs. 6-8 the connection of the cable 4 with the casing 3 is represented, The connection is arranged in such a way, that the cable 4 can be conveniently and quickly exchanged, which every time must be done, as soon as the contacts of the stationary junction-pieces are to be changed for the purpose of raising new payments for the use of the telephonic wire plant at the end of a subscription period. The casing 3 is provided below with a shell 16 firmly screwed on. Into this shell there is inserted an insulation-body 17, provided with four holes, which are provided with lateral excavations 21. Into the four holes there enter the extremities of the wires, that lead to the receiver and to the transmitter. The wire-extremities 20 are formed like needles with curvatures corresponding to the excavations 21. These curvatures prevent any longitudinal displacement of the extremities 20 in the insulating piece 17. The extremities somewhat protrude out of the part 17. The insulating piece 18 carries four metal tubes 22, in which the extremities of the four wires of the cable need only to be loosened in order to replace the cable 4 with the key 5 by another cable with a new key.

Another form of the pocket-telephone is According to the same the receiver andv the transmitter are arranged in two separate narrow casings 8 and 10, which can be shut by being put together (Fig. 3) and. opened by being drawn asunder (Fig. 2) by means of the intermediate piece 9 formed as in spectacles.

In the position shown by Fig. 2 the tele phone is represented as it is used; the position shown by Fig. 3 represents the state of the telephone as carried in the pocket the cable in this arrangement may consist of two wires only, that are led to the transmitter 10 and along the intermediate parts 9 to the receiver.

Figs. 9 and 10 represent the exchangeable connection between the cable 4 and the transmitter 10. The same has the shape of a watch-bow 23, 24. The one wire is connected with the bow 23 and by this with the casing itself; the other wire is led in an insulated state through the button 24 into the casing and is guided by the mechanisms of thetransmitter and of the receiver into the casing 10. The button 24 is provided with an insulating tube, similarly as the insulationpiece 18, and is also to be inserted into the watchcasing 10 and to be fastened bya screw. A corresponding needle-point of the inner conductor comes thereby into contact with the insulated tube.

In the transmitter, Figs. 9 and 10, 25 is the electromagnet, 26 the bobbin and 27 the diaphragm.

The stationary junctionpieces provided in the telephonic wire plant for the use of pocket telephones are illustrated in three different forms by the Figs. 11 to 21.

Figs. 11 to 16 represent in different views a first form of the stationary junctiomdevice. The whole mechanism is arranged in the casing 7 on the backwall 28. 30 is an insulating plate, carrying in its middle upon a metal support 41 three cooperating toothed-wheels 38, 32. The middle wheel 32 has a slitted, shell-shaped projection 31, into which the key 5 of the cable 4 can be introduced. By turning the key 5 the toothed-wheel 32 can be turned at an angle of 90. By means of the slit 49 and of the stop 48 the angle of rotation is limited.

Upon the two outside toothed-wheels 38 there are axes 37 of insulating material. Upon each of these axes there are two elastic contact-tongues 36 firmly screwed on.

The two contact-tongues 36 of the upper toothed-wheel 38, Fig. 11, are connected by elastic slide contacts 34, and by the terminal screws each with one of the two wires.

4 of the telephone wire plant. The screws 45 serve at the same time for fastening the plate 30 on the casing-backwall 28. The corresponding two contact-tongues 36 of the lower toothed-wheel 38 are connected by the flexible wires 47, by the bow 46 and by the terminal screws 45 each with one of the remaining wires of the telephone wire plant. l Vhen the toothed-wheel 32 is turned by means of the key 5 at an angle of 90 in the direction of the arrow, the toothedwheels 38 and the axes 37 turn at the same time at the same angle, whereby the contact-tongues 36 go around into the position denoted by dashes and points; in this position they press the four contact tongues 39, corresponding to them, out of the position marked by fully drawn outlines into the position marked by dashes and points. The contacttongues 39 are elastically fastened to vertical walls 33 consisting of insulating material and reach with projecting flaps 43 into suitable slits 42 of the walls 33. The Walls 33 themselves are guided. in the four slitted pillars 44 and fastened therein by means of small screws. When the contact-tongues 39 are pressed to the walls by the elastic contacts 36, the projections 43 come a little forward out of the slits 42 and thus come into contact each with one of the four wires 4 of the insertion-key 5 turned into the position (Fig. 11) marked. by dashes.

The construction of the insertion-key is represented. by Figs. 14 to 16. The four wires of the cable 4 pass through an insulating body 40 in the way shown by Fig. 6, and are connected with the insulated wires embedded in the key 5. These wires are in the bit of the key 5 rectangularly bent over and led out at both sides of the bit. The points, at which the conductor-parts issue out of the narrow side of the bit, must exactly corre spond in their height to the positions of the contact-flaps 43.

29 is a closing-device for the purpose of attaching the casing 7 to the backwall 28.

By the present arrangement the advantage is gained, that the contact-pieces of the apparatus usually being out of the reach. of the insertion-hole '6 are protected against damages which might arise by misuse of the junction-device. Further the contact-pieces are all arranged. in such a way, that they can be easily transposed and made unservioeable for the insertion-keys used up to then. This transposition of the contacts is effected accordin g to the present invention at the end. of the subscription period for the purpose of compelling the subscribers to exchange the insertion-keys of the pocket-telephones for new keys and to pay for the new subscription. To transpose the contacts it is only necessary to set the insulating plates 33 in their guiding pillars 44 higher or deeper and to displace correspondingly the contacttongues 36 on the axes 37. Then the Wires 4 of the key-bit 5 no more fit to the contactflaps 43, and. it is necessary to use a new key with another disposition of the wires 4 in the bit 5.

Another form of carrying out the stationary junction-device is represented by the Figs. 17-19. The same signs of reference of the Figs. 1116 and of the Figs. 17 -19 represent the same apparatus-parts. In the present arrangement the toothed-wheel 32 pushes the two racks 50 in a straight line to and fro, which racks are laterally arranged and guided in slits. At each of the two racks 50 there are two insulated. contact bows 51, 52, which with the one ends elastically glide on the insulation plate 30 and with the other ends correspondingly bent up grasp into guiding slits 55 of the insulation-walls 33. The insulation walls 33 are fastened by means of the pillars 56 and of the sliders 57 to the plate 30.

When the toothed-wheel 32 is turned in the direction of the arrow, the extremities of the bows 51, 52 slide over the contacts 45, 53 arranged 011 the plate 30. At the same time the bow-extremities 52 guided in the slits 55 arrive at the inner end of the slits 55 and protrude a little out of the same. The key 5 .in turning into the vertical position sets itself with its Wires 4 against the projecting extremities of the bow 52. In this way the cable 4 of the pocket-telephone is connected with the four wires belonging to the telephonic wire plant and attached to the terminal screws 45. Figs. 17 and 18 show the contact-bows 51, 52 out of connection, Fig. 19 on the contrary shows them in connection with the insertion. key 5. This arrangement too afliords protection of the contact-pieces against misuse and easily permits a trans-.

position of the inner contacts for the purposes above referred to. To this end it is only necessary to alter the height of the insulation-walls 33 at the pillars 56. Thereby the elastic extremities of the bows 51, 52 arrive at other positions as regards to their height and. give no more contact with the keys used. before. Finally Figs. 20 and. 21. show a third form of carrying out the stationary junction-device.

According to the same in the casing 7 on the insulating plate 30 the insulating disk 60 is elastically pivoted by means of the middle spiral pressure-spring 61 and of the pins 64 laterally provided at the disk 60, so that it is able to turn round. This disk is situated just beneath the key-hole 6 of the casing-lid 7 and carries in its middle a cavity, into which the key 5 when inserted places its axis and thus it is guided. In the insulation plates 30 there are arranged the four conductor-pillars 59, carrying contact-tongues 58 fastened by terminal screws. The pillars 59 are connected by means of the four conductor-bows 65 with four contact-buttons 63, which somewhat protrude out of the plate 30.

The turn-disk 60 carries four terminal screws 66, which are connected. above with the four conducting wires and below carry elastic contact-tongues 62. In the position of the key 5, Fig. 20, the contact tongues 62 are displaced with regard to the buttons 63. To connect the pocket telephone with the telephonic wire plant, the key' 5 is pressed into the casing 7, so that its bit comes behind the lid of the casing. Thereby the disk 60 is pressed down upon the backwall 30 of the.

casing. Now the key is turi'ied in the direction of the arrow, Fig. 21, at 90 and by means of the projection 67 carries the disk pressed down. The key is kept in its presseddown position by the casing-lid fitting behind the key-bit. WVhen the disk 60 turns, the contact-tongues 62 arrive at the corresponding buttons 63. At the same time the conductor-parts 4 of the key-bit come into contact with the conductor-extremities 58. By this procedure the pocket-telephone is connected with the telephonic wire plant.

By a transposition of the conductor extremities 58 the stationary junction-device can be quickly made unserviceable for the keys used before.

The communication with the telephonic central station is eli'ected with the present invention similarlyas with other telephonic apparatuses. By the insertion of the key the central station receives the signal of a bell or of a lamp flashingup and mediates the desired conversation in. the usual way.

As in the present case every one will have his own pocket-telephone which he is able to connect everywhere with the telephonic wire-plant, it is clear, that the use of the whole telephone plant will be facilitated and augmented by the introduction of the present invention. Besides it appears from the stand-point of the hygiene and of the cleanliness a great step, that every one will possess a telephone used by himself alone and that one is not compelled to use an apparatus that is used jointly by many other people.

What I claim is:

1. The combination with a telephone and a key connected thereto and carrying the conductor terminals of said telephone, of station contact apparatus comprising movable contact parts operable by said key and stationary contact parts, said. last named contact parts being connected. to the wires of the telephone system.

The combination with a telephone and a key connected thereto and carrying conductor terminals, of telephone station apparatus having contact pieces, which in their position. of repose lie out of the reach of the key and devices movable only by the key to put said contact pieces in connnunication with the latter, for the purpose of protecting the contact pieces against damage caused by misuse of the stationary junction apparatus.

In witness whereof, I subscribe my signa ture, in presence of two witnesses.

NUCHIM LEIB W'EINGOTT. Witnesses HENRY HAsPER, NOLDERMAR HAUPT. 

